CN102971977A

CN102971977A - Method and apparatus for mitigating interference in femtocell deployments

Info

Publication number: CN102971977A
Application number: CN2011800326617A
Authority: CN
Inventors: 周彦; F·梅什卡蒂; V·昌德; M·亚武兹
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2010-06-29
Filing date: 2011-06-29
Publication date: 2013-03-13
Anticipated expiration: 2031-06-29
Also published as: US8676216B2; KR20140097379A; WO2012006195A1; TW201210218A; JP2013535869A; CN104009814B; KR20130052739A; EP2814190B1; CN102971977B; EP2814190A3; US20110319088A1; JP5752792B2; US9008030B2; KR101461551B1; EP2589167A1; EP2814190A2; US20140161073A1; JP2014239498A; CN104009814A

Abstract

Methods and apparatuses are provided for determining one or more parameters of an access point that can be set or adjusted to mitigate interference to other access points. A rise-over-thermal (RoT) threshold can be set at an access point based on one or more parameters, such as pathloss measurements, location of the access point, etc., such that interference from devices communicating with the access point can be mitigated. In addition, a noise floor, RoT threshold, etc., can be adjusted based on determining a transmit power difference, out-of-cell interference, and/or similar measurements.

Description

Be used for disposing the method and apparatus that interference is suppressed at Femto cell

Require priority based on 35U.S.C § 119

That present patent application requires to submit on June 29th, 2010, exercise question is the provisional application No.61/359 of " ADAPTIVERISE-OVER-THERMAL (ROT) THRESHOLD AND NOISE FLOORADJUSTMENT FOR FEMTOCELL UPLINK INTERFERENCEMANAGEMENT ", 762 priority, this provisional application has transferred the application's assignee, so be incorporated herein by reference clearly; And, that present patent application requires to submit on September 28th, 2010, exercise question is the provisional application No.61/387 of " ADAPTIVERISE-OVER-THERMAL (ROT) THRESHOLD AND NOISE FLOORADJUSTMENT FOR FEMTOCELL UPLINK INTERFERENCEMANAGEMENT ", 359 priority, this provisional application has transferred the application's assignee, so be incorporated herein by reference clearly.

Technical field

Put it briefly, following description relates to wireless communication, specifically, relates to the interference in the Femto cell deployment is suppressed.

Background technology

Wireless communication system is disposed widely, so that the various types of Content of Communication such as speech data etc. to be provided.Typical wireless communication system can be to support the multi-address system of communicating by letter with a plurality of users by sharing available system resource (for example, bandwidth, transmitting power etc.).The example of this multi-address system can comprise code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system, OFDM (OFDMA) system etc.In addition, these systems can meet the technical specification such as third generation partner program (3GPP), 3GPP Long Term Evolution (LTE), Ultra-Mobile Broadband (UMB), Evolution-Data Optimized (EV-DO) etc.

Usually, wireless multiple-access communication system can be supported the communication of a plurality of mobile devices simultaneously.Each mobile device can come to communicate with one or more access points via the transmission on forward link and the reverse link.Forward link (or down link) refers to the communication link from the access point to the mobile device, and reverse link (or up link) refers to the communication link from the mobile device to the access point.In addition, can set up communicating by letter between mobile device and the access point via the single output of single input (SISO) system, the single output of many inputs (MISO) system, multiple-input and multiple-output (MIMO) system etc.In addition, in the peer to peer wireless network configuration, mobile device can communicate with other mobile device (and/or access point and other access point).

For the traditional base station is replenished, can dispose additional limited access point so that the wireless coverage to the more robust of mobile device to be provided.For example, for the capacity increase that increases, abundanter user experience, in the building or other specific geographical coverage etc., can dispose radio repeater station and low power base station (for example, it can be called the NodeB of family usually or the eNB(of family is referred to as H (e) NB), femto access point, Femto cell, picocell, macrocell etc.).In some configurations, these low power base station can be via broadband connection (for example, Digital Subscriber Line (DSL) router, cable or other modulator-demodulator etc.) be connected to the internet, wherein broadband connection can be provided to the back haul link of mobile operator network.Therefore, can for example dispose these low power base station so that the mobile network's access to one or more equipment to be provided via broadband connection in the user family.

At this on the one hand, under many circumstances, the deployment of these low power base station is not have plannedly, so base station and/or the mobile device that communicates with it may cause the interference to contiguous other low power base station, macro cell base station or miscellaneous equipment.For low power base station, exist its through-put power setting is prevented or the interference that alleviates the interference of other access point suppresses mechanism.Yet, may still can cause interference to other access point by the equipment of low-power access point service.

Summary of the invention

The below provides the brief overview to one or more aspects, so that the basic comprehension to these aspects to be provided.This general introduction is not the general summary to whole contemplated aspects, the scope that is not intended to identify key or the important element of whole aspects yet or describes any or whole aspects.Its purpose only is to provide in simplified form some designs of one or more aspects as the in greater detail preamble that hereinafter provides.

According to one or more embodiment and corresponding disclosure thereof, the interference in conjunction with the parameter of Femto cell access point being made amendment suppress near one or more other access points comes various aspects are described.For example, can come for the Femto cell access point hot noise increase (RoT) threshold value to be set based on one or more parameters relevant with macrocell at least in part, to suppress the interference to the access point of the access point of this macrocell and/or one or more other Femto cells, wherein, the access point of this Femto cell communicates in described macrocell.In one example, can be at least in part determine the RoT threshold value based on the one or more path loss measured values that receive from the one or more equipment that communicate with the Femto cell access point (for example, to the Femto cell access point, to the path loss of one or more macrocells or other Femto cell access point etc.).In addition, in another example, the Femto cell access point can increase noise floor to suppress the interference (for example, at least in part based on the detection that the signal strength signal intensity of one or more other access points, the outer interference in residential quarter etc. are carried out) from one or more other access points or the equipment that communicates with it.

According to an example, provide a kind of method that is used to the Femto cell access point that the RoT threshold value is set.The method comprises one or more parameters that reception is corresponding with one or more access points, determines at least in part the RoT threshold value of this Femto cell access point based on these one or more parameters.The method also is included in Femto cell access point place the RoT threshold value is arranged.

On the other hand, provide a kind of device that is used to the Femto cell access point that the RoT threshold value is set.This device comprises at least one processor, this at least one processor is configured to receive the one or more parameters corresponding with one or more access points, and the RoT threshold value of determining at least in part this Femto cell access point based on these one or more parameters.This at least one processor is further configured as at Femto cell access point place the RoT threshold value being arranged.This device also comprises the memory that is coupled to described at least one processor.

On the other hand, a kind of device that is used to the Femto cell access point that the RoT threshold value is set is provided, this device comprises for the module that receives the one or more parameters corresponding with one or more access points, and the module that is used for determining based on these one or more parameters at least in part the RoT threshold value of this Femto cell access point.This device also comprises the module that the RoT threshold value is arranged at Femto cell access point place.

In addition, on the other hand, a kind of computer program that is used to the Femto cell access point that the RoT threshold value is set is provided, this computer program comprises computer-readable medium, this computer-readable medium has be used to the code that makes at least one computer reception one or more parameters corresponding with one or more access points, and is used for making described at least one computer determine at least in part the code of the RoT threshold value of Femto cell access point based on described one or more parameters.This computer-readable medium also comprises be used to the code that described at least one computer is arranged the RoT threshold value at Femto cell access point place.

In addition, in one aspect, a kind of device that is used to the Femto cell access point that the RoT threshold value is set is provided, this device comprises for the parameter receiving-member that receives the one or more parameters corresponding with one or more access points, and the RoT threshold value determining means that is used for determining based on these one or more parameters at least in part the RoT threshold value of Femto cell access point.This device also comprises the RoT threshold value setting parts that the RoT threshold value arranged at Femto cell access point place.

According to another example, provide a kind of for based on the method for determining of disturbing being come the parameter of access point is adjusted.The method comprises that the strongest transmitting power to one or more access points detects, and determines whether this strongest transmitting power surpasses the transmitting power of using at Femto cell access point place.The method comprises also that at least in part whether surpassing described transmitting power based on the strongest described transmitting power comes the noise floor of the estimation of this Femto cell access point is adjusted.

On the other hand, provide a kind of for based on the device that determining of disturbing is come the parameter of access point is adjusted.This device comprises at least one processor, this at least one processor is configured to the strongest transmitting power of one or more access points is detected, and determines whether this strongest transmitting power surpasses the transmitting power of using at Femto cell access point place.Described at least one processor is further configured as whether surpassing described transmitting power based on the strongest described transmitting power at least in part to come the noise floor of this Femto cell access point is adjusted.This device also comprises the memory that is coupled to described at least one processor.

On the other hand, provide a kind of for based on the device that determining of disturbing is come the parameter of access point is adjusted, this device comprises the module that detects for the strongest transmitting power to one or more access points, and is used at least in part coming module that the noise floor of Femto cell access point is adjusted based on determining of carrying out of the transmitting power whether the strongest described transmitting power is surpassed the Femto cell access point.

In addition, on the other hand, provide a kind of for based on the computer program that determining of disturbing is come the parameter of access point is adjusted, this computer program comprises computer-readable medium, this computer-readable medium has the code that detects be used to the strongest transmitting power that makes at least one computer to one or more access points, and is used for making described at least one computer to determine whether the strongest described transmitting power surpasses the code of the transmitting power of using at Femto cell access point place.Described computer-readable medium also comprises be used to making described at least one computer whether surpass described transmitting power based on the strongest described transmitting power at least in part and comes code that the noise floor of this Femto cell access point is adjusted.

In addition, in one aspect, provide a kind of for based on the device that determining of disturbing is come the parameter of access point is adjusted, this device comprises the interference determining means that detects for the strongest transmitting power to one or more access points, and is used at least in part coming noise floor adjustment component that the noise floor of Femto cell access point is adjusted based on determining of carrying out of the transmitting power whether the strongest described transmitting power is surpassed the Femto cell access point.

In order to realize aforementioned purpose and relevant purpose, one or more aspects are included in the feature of hereinafter fully describing and particularly pointing out in the claims.Some illustrative aspects that following description and accompanying drawing have elaborated one or more aspects.Yet these features just expression can be utilized several modes in the various ways of principle of each side, and described description is intended to comprise all these aspects and equivalents thereof.

Description of drawings

Describe disclosed aspect in connection with accompanying drawing hereinafter, provide these accompanying drawings so that explanation and unrestricted disclosed aspect, identical label represents identical element in the accompanying drawings, and wherein:

Fig. 1 is the block diagram that helps example system that the interference in the wireless network is suppressed.

Fig. 2 is the block diagram for the example system of determining hot noise increase (RoT) threshold value, and wherein, the equipment that hot noise increase (RoT) threshold value is used for suppressing other access point disturbs.

Fig. 3 is the block diagram for the example system of measuring to one or more device request path losses.

Fig. 4 is the block diagram for the example system that noise floor or other parameter of access point are adjusted.

Fig. 5 is the flow chart for an aspect of the illustrative methods of the RoT threshold value of determining access point.

Fig. 6 is based on the flow chart of an aspect that transmitting power is determined the illustrative methods of RoT threshold value.

Fig. 7 is the flow chart of an aspect of determining the illustrative methods of RoT threshold value with path-loss difference CDF.

Fig. 8 is the flow chart for an aspect of the illustrative methods that the noise floor at access point place is adjusted.

Fig. 9 is the flow chart aspect of the illustrative methods that in soft switching process the noise floor of the estimation of equipment strengthened.

Figure 10 is the block diagram according to the example mobile device of various aspects described herein.

Figure 11 is the block diagram for the example system that one or more parameters of access point are adjusted.

Figure 12 is the block diagram of example system of determining the RoT threshold value of access point.

Figure 13 is the block diagram of the example system that in soft switching process the noise floor of the estimation of equipment strengthened.

Figure 14 is the block diagram of the example wireless communication system of the various aspects that provide according to this paper.

Figure 15 is the schematic diagram of the example wireless network environment that can dispose in conjunction with various system and methods described herein.

Figure 16 shows the example wireless communications that is configured to support a plurality of equipment, can realizes therein the various aspects of this paper.

Figure 17 is the schematic diagram of realizing the example communication system of the deployment of Femto cell in network environment.

Figure 18 shows the example of the coverage diagram of the tracing area with a plurality of definition.

Embodiment

Referring now to accompanying drawing various aspects are described.In the following description, for the purpose of explaining, a large amount of details have been provided in order to complete understanding to one or more aspects is provided.Yet, clearly, can realize these aspects without these details.

As further described herein, can one or more parameters of femto access point be arranged or adjust, to suppress the interference (for example, being caused by the equipment that communicates with this femto access point potentially) to one or more other access points.For example, can be based on the relevant one or more parameters of the access point that communicates therein with the Femto cell access point, come the threshold value of the hot noise increase (RoT) of Femto cell access point is arranged and/or adjusts.In one example, these one or more parameters can be the path loss to Femto cell access point, one or more other Femto cell access point or macrocell access point etc.In another example, can come the noise floor of the estimation of this access point is adjusted based on definite level of the interference that access point is caused.In either event, this type of adjustment may cause the modification to the employed power of equipment that communicates with it, and this can be to interference that cause or that caused by one or more access points suppresses at one or more access points place.

As using in this application, term " parts ", " module ", " system " etc. are intended to comprise the entity relevant with computer, such as but not limited to combination, software or the executory software of hardware, firmware, hardware and software.For example, parts can be but thread, program and/or the computer of the process that is not limited to move on the processor, processor, object, executable program, execution.For example, the application program and the computing equipment that move at computing equipment can be parts.One or more parts can be positioned at executory process and/or thread, and parts can be on the computer and/or be distributed between two or many computers.In addition, can carry out these parts by the various computer-readable mediums that store various data structures thereon.These parts can pass through this locality and/or remote process, for example according to the signal with one or more packets (for example, the data that come from parts, wherein these parts are undertaken alternately by another parts in described signal and local system, the distributed system, and perhaps and other system upper at network (for example internet) carries out alternately) communicate.

In addition, this paper is described various aspects in conjunction with terminal (can be catv terminal or wireless terminal).Terminal can also be called as system, equipment, subscriber unit, subscriber station, mobile radio station, travelling carriage, mobile device, distant station, remote terminal, accesses terminal, user terminal, terminal, communication equipment, user agent, user's set or subscriber equipment (UE).Wireless terminal can be that cell phone, satellite phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL) are stood, PDA(Personal Digital Assistant), the handheld device with wireless connections ability, computing equipment or be connected to other treatment facility of radio modem.In addition, this paper is described various aspects in conjunction with the base station.The base station can be used for communicating with wireless terminal, and the base station can also be called access point, Node B, evolved Node B (eNB), H (e) NB or some other technical terms.

In addition, term " perhaps " is intended to mean " perhaps " of comprising property rather than " perhaps " of exclusiveness.That is to say, can know unless otherwise or from context and learn, otherwise phrase " X uses A or B " is intended to represent any natural comprising property displacement.That is to say that any one in the following example all satisfies phrase " X uses A or B ": X uses A; X uses B; Perhaps X use A and B the two.In addition, can know to learn it is for singulative unless otherwise or from context, otherwise the article that uses in the application and the claims " " and " one " should be interpreted as expression " one or more " usually.

Technology described herein can be used for various wireless communication systems, for example CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other system.Term " system " and " network " be mutual the use usually.Cdma system can be realized the wireless technology such as general land wireless access (UTRA), cdma2000 etc.UTRA comprises other distortion of broadband-CDMA(W-CDMA) and CDMA.In addition, cdma2000 is contained IS-2000 standard, IS-95 standard and IS-856 standard.Tdma system can be realized the wireless technology such as global system for mobile communications (GSM) etc.The OFDMA system can realize such as evolved UTRA(E-UTRA), Ultra-Mobile Broadband (UMB), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, flash-

Deng wireless technology.UTRA and E-UTRA are the parts of Universal Mobile Telecommunications System (UMTS).3GPP Long Term Evolution (LTE) is the version that uses the UMTS of E-UTRA, and it uses OFDMA and use SC-FDMA in up link at down link.In the document that is called " third generation partner program " tissue (3GPP) from name, UTRA, E-UTRA, UMTS, LTE and GSM have been described.In addition, in the document that is called " third generation partner program 2 " tissue (3GPP2) from name, cdma2000 and UMB have been described.In addition, this type of wireless communication system can comprise equity (for example, travelling carriage is to the travelling carriage) ad hoc network system of azygous unauthorized frequency spectrum, 802.xx WLAN, bluetooth and any other short range or the remote radio communication technology of common use in addition.

To introduce various aspects or feature around the system that can comprise a plurality of equipment, parts, module etc.Be to be understood that and be clear that various systems can comprise extra equipment, parts, module etc., and/or can not comprise by reference to the accompanying drawings the whole of the equipment discussed, parts, module etc.Also can use the combination of these methods.

With reference to Fig. 1, show and help at the Service Access Point place one or more parameter settings are suppressed example wireless communications 100 to the interference of other access point.System 100 comprises equipment 102, and it can communicate to receive access to wireless network and/or its one or more parts with Service Access Point 104.System 100 can also comprise other access point 106 and/or 108, and equipment 102 may disturb access point 106 and/or 108 potentially.System 100 also optionally comprises another equipment 110, and it can be served by Service Access Point 104.For example, equipment 102 and/or 110 can be UE, its part of modulator-demodulator (or other networking (tethered) equipment) etc.In the access point 104,106 and/or 108 each can be that the Femto cell access point is (such as the evolved Node B of home node-b or family, be referred to as in this article H (e) NB), picocell access point, macrocell access point, mobile base station, via node, equipment (for example, in equity or under group mode, communicate), its part etc.

According to an example, equipment 102 may in Service Access Point 104 transmitted signals 112 (no matter being report path loss or alternate manner) disturb potentially access point 106 and/or 108.As described, in Service Access Point 104, access point 106 and/or the access point 108 at least some can be that Femto cell or other do not have the part of planned wireless network deployment, therefore, access point 104,106 and/or 108 or equipment of communicating with it may phase mutual interference (for example, in the situation that access point is very closely disposed).In this respect, for example, Service Access Point 104 can arrange or adjusts to suppress by may disturbing that equipment 102 and/or miscellaneous equipment cause one or more parameters.

As further described herein, Service Access Point 104 can arrange the RoT threshold value based on one or more messaging parameters at least in part, to suppress the interference to access point 106 and/or 108.In one example, these one or more messaging parameters can corresponding to as by network monitoring module (NLM) (not shown) etc. of equipment 102, one or more miscellaneous equipment (such as equipment 110), Service Access Point calculate to the path loss measured value of access point 106 and/or 108 and to the path loss of Service Access Point 104.Can be at least in part come the RoT threshold value is carried out other setting based on the noise floor of determining at access point place etc.Therefore, for example, equipment 102 can be at least in part based on to the path loss (calculating based on signal 114) of Service Access Point, to the path loss (calculating based on the signal 116 that receives) of access point 106 etc., come to Service Access Point 104 report path loss measured values 112.In another example, one or more parameters can be corresponding to can be in order to determining the parameter of path loss, such as public guide frequency indicator channel (CPICH) transmitting power among received signal code power (RSCP), the LTE etc.

In another example, Service Access Point and access point 106(and/or access point 108) can use different through-put powers, this may cause equipment 102 and access point 104 to communicate, wherein, access point 104 in the operation of distant location more but use than access point 106 higher power and launch.In this example, when equipment 102 communicated with higher power and Service Access Point 104, equipment 102 may thereby disturb access point 106.In order to suppress this interference, for example, access point 106 can increase the employed through-put power of the equipment that communicates with it to RoT threshold value and/or noise floor adjustment.In this example, access point 106 can be at least in part by use NLM or miscellaneous equipment, from the indication of Service Access Point 104 received powers etc., obtain the through-put power 118 of Service Access Point 104 and/or other contiguous access point (not shown).Access point 106 can come noise floor is adjusted by the difference of the through-put power between access point 106 and the Service Access Point 104.In another example, access point 106 can adaptively noise floor or RoT threshold value adjust based on this difference at least in part.

In another example, equipment 102 can (for example communicate with Service Access Point 104 and access point 106 simultaneously, in soft handover (SHO) process) so that equipment 102 receives the user platform data with Service Access Point 104 communication control data and from access point 106 and/or Service Access Point 104.In this example, use at access point 106 in the situation of the transmitting power higher than Service Access Point 104, because as the part of SHO, the power that access point 106 also can control appliance 102, so Service Access Point 104 may not receive the control data from equipment 102 reliably.In this example, access point 106 can with equipment 102(for example, rather than do not use the miscellaneous equipment of SHO with access point 106, Service Access Point for example) strengthens the noise floor through adjusting in the process that communicates, this can make equipment 102 increase through-put power, so Service Access Point 104 can obtain to control data thus.The interference that top modification allows the access point that is deployed in the wireless network is caused manages.

Go to Fig. 2, show the example wireless communications 200 that the RoT threshold value is arranged at the access point place.System 200 comprises equipment 202, and as mentioned above, equipment 202 and Service Access Point 204 communicate to receive the access to one or more wireless network components.In addition, system 200 can comprise another access point 206, and at least in part owing to equipment 202 and Service Access Point 204 communicate, so equipment 202 may disturb access point 206 potentially.For example, the deployment of Service Access Point may cause the interference near other access point (not shown) the Service Access Point 204, and no matter this interference is that the miscellaneous equipment that communicates by Service Access Point 204, equipment 202 or with Service Access Point 204 etc. causes.As described, for example, equipment 202 can be UE, modulator-demodulator etc., and Service Access Point 204 can be Femto cell access point, H (e) NB etc.As described, access point 206 can be such as macrocell access point, Femto cell access point or picocell access point, mobile base station, relay station etc.

Equipment 202 can optionally comprise the path loss measurement component 208 of determining to the path loss of one or more access points, and the path loss reporting unit 210 that the path loss of determining is sent to one or more access points or equipment.Service Access Point 204 comprise for obtain with communication environment (for example, in macrocell, communicate) the parameter receiving-member 212 of relevant one or more parameters, be used for determining based on these one or more parameters at least in part the RoT threshold value determining means 214 of the RoT threshold value of Service Access Point, and the RoT threshold value setting parts 216 that are used for using at the Service Access Point place this RoT threshold value.Service Access Point 204 can also optionally comprise for obtaining and process the NLM parts 218 of one or more signals from one or more access points and/or being used for determining the path-loss difference calculating unit 220 of the path-loss difference between Service Access Point 204 and one or more other access point.

According to an example, parameter receiving-member 212 can obtain the relevant one or more parameters of one or more other access points (for example access point 206 or one or more other Femto cell access point, macrocell access point or the basically access point of any type) in the scope with Service Access Point 204.For example, these parameters can corresponding to access point 206 near communication environment, access point 206 one or more parameters relevant with respect to the position of Service Access Point 204 etc.For example, RoT threshold value determining means 214 can be determined the RoT threshold value of Service Access Point 204 at least in part based on these one or more parameters, to suppress the interference (for example, being caused by the equipment that communicates with Service Access Point 204) to other access point.In addition, in the scope of Service Access Point 204 or the parameter that in the scope of Service Access Point 204, records can refer to the signal from access point 206 that the equipment (such as equipment 202) that communicates by Service Access Point 204, with Service Access Point 204 etc. is monitored.

For example, be in the situation of higher level in the RoT of Service Access Point 204 threshold value, for example attempt access service access point 204(, attempt to access its Random Access Channel (RACH)) equipment 202 can increase through-put power to reach the signal to noise ratio (snr) corresponding with the RoT threshold value.Yet when equipment 202 used this through-put power and Service Access Point 204 to communicate, this may cause the interference to access point 206.Yet, use higher RoT threshold value to improve the throughput of equipment 202 at Service Access Point 204 places, and can improve the opposing from the interference of the miscellaneous equipment that communicates with other access point.Therefore, RoT threshold value determining means 214 can be used the one or more parameters relevant with the communication environment of Service Access Point 204, determines the RoT threshold value of Service Access Point 204.

For example, comprise that in one or more parameters access point with respect to the position of Service Access Point 204 (for example, and/or compare with the absolute position of access point 206, the absolute position of Service Access Point 204) in the situation, RoT threshold value determining means 214 can be estimated the distance between the known location of Service Access Point 204 and one or more other access points.For example, parameter receiving-member 212 can be from such as the access point management server of the eNB of family management server etc., such as Serving Mobile Location Center (SMLC)) etc. location-server (not shown), access point 206, equipment 202 or miscellaneous equipment etc. receive the position of these one or more access points.In this example, RoT threshold value determining means 214 can calculate based on the position of one or more access points (for example access point 206) of the position of Service Access Point 204 (also can receive from for example location-server) and reception the distance of these one or more access points, and can determine based on the distance that calculates the RoT threshold value of Service Access Point 204, to suppress the interference to other access point.In one example, NLM parts 218 can be from access point 206 picked up signal, and can determine signal strength signal intensity; Parameter receiving-member 212 can obtain these signal strength signal intensities from NLM parts 218, and RoT threshold value determining means 214 can be additionally or replacedly determine the RoT threshold value of Service Access Point 204 based on this signal strength signal intensity, with the interference of inhibition to access point 206.

In another example, equipment 202 can be to Service Access Point 204 report path loss measured values to help to determine the RoT threshold value.In this example, path loss measurement component 208 can be to measuring to the path loss of access point (such as access point 206) of Service Access Point 204, one or more vicinities etc., and path loss reporting unit 210 can send to the path loss measured value Service Access Point 204.Parameter receiving-member 212 can way to acquire loss measurement value, and RoT threshold value determining means 214 can be determined the RoT threshold value of Service Access Point 204 at least in part based on this path loss measured value.For example, for the equipment 202(that communicates with it for example, attempt to access RACH), the SNR at Service Access Point 204 places can be:

γ _RACH=TxPwr _F-PL _F-(RoT+No _F)

Wherein, TxPwr _FThat equipment 202 is used for the successfully through-put power of access service access point 204, PL _FBe the path loss to Service Access Point 204 of being measured by equipment 202, RoT is the RoT at Service Access Point 204 places, and No _FIt is the noise floor at Service Access Point 204 places.In one example, noise floor can be scheduled and/or in configuration (for example, from access point management server etc.) receive.

In addition, the interference that access point (for example access point 206) is caused can be insignificant, in order to avoid the equipment that affects access point 206 and/or communicate with it:

TxPwr _F-PL _M<No _M-Δ _M

Wherein, PL _MThe path loss to access point 206 of being measured by equipment 202, No _MThe noise floor of access point 206, and Δ _MThe maximum interference level relevant with the noise floor of access point.These formula merging are obtained:

RoT<(PL _M-PL _F)+(No _M-No _F)-γ _RACH-Δ _M

And RoT threshold value determining means 214 can be calculated by following formula the upper limit of RoT threshold value:

RoT _{bound_1}=Func1(PL _M-PL _F)+(No _M-No _F)-γ _RACH-Δ _M

Wherein, 208 couples of PL of path loss measurement component _MAnd PL _FMeasure, and path loss reporting unit 210 is with PL _MAnd PL _FReport to Service Access Point 204, RoT threshold value determining means 214 obtains No from access point management server and/or access point 206 _MAnd No _F, RoT threshold value determining means 214 is calculated γ as implied abovely _RACHAnd (for example, from access point management server or other core network component, configuration etc.) obtain the Δ as fixed value _MIn addition, Func1 can be PL _M-PL _FBasically arbitrary function, for example minimum value function, hundredths distribute (for example, 10%) etc., it can be by RoT threshold value determining means 214(for example, the configuration that receives based on the configuration of hard coded, from one or more network componentses etc.) dispose.

In another example, a plurality of access points be present in Service Access Point 204 near and potentially in the disturbed situation, the upper limit of RoT threshold value can be confirmed as:

{RoT}_{bound_1} = \min_{k} (Func 1 ({PL}_{M, k} - {PL}_{F})) + ({No}_{M} - {No}_{F}) - γ_{RACH} - Δ_{M}

Wherein, k is the index of corresponding access point (for example, the access point of macrocell, Femto cell, picocell etc.).Yet, in addition, equipment 202 can be under the constraint of maximum transmission power access service access point 204, described maximum transmission power can arrange by Service Access Point 204:

γ _RACH<Max_TxPwr _F-PL _F-(RoT+No _F)

Wherein, Max_TxPwr is maximum transmission power, and it can be to receive or otherwise be determined by parameter receiving-member 212.This can produce another upper limit of the RoT threshold value that RoT threshold value determining means 214 can calculate:

RoT _{bound_2}=Max_TxPwr _F-Func2(PL _F)-γ _RACH-No _F

Wherein, Func2 (PL _F) be at a plurality of device locations PL of place _FThe function (for example, minimum value function, hundredths distribution etc.) of statistics.Therefore, in one example, RoT threshold value determining means 214 can be come by following formula the RoT threshold value of calculation services access point:

RoT _thres=min(RoT _{bound_1},RoT _{bound_2})

For example, the measurement of various path losses discussed above can be to Service Access Point 204 request the time (for example, part as the cycle of training of being indicated by Service Access Point 204) etc., by equipment 202 and/or NLM parts 218(for example, based on one or more timers) periodicity ground carries out.As described, RoT threshold value determining means 214 can RX path loss measurement value, and correspondingly determines the RoT threshold value.In one example, can report betwixt with one or more equipment and calculate for PL the cycle of training of path loss measured value _{M, k}-PL _F, PL _FThe path loss measured value of statistics etc.For example, in initialization or other side (for example, based on event or other trigger) time, the parameter that Service Access Point 204 can detect based near other access point (for example access point 206) (for example, the signal strength signal intensity that receives, the system information of broadcasting etc.) determine down-link transmitting power, and can correspondingly determine downlink coverage areas based on these parameters.RoT threshold value determining means 214 can also arrange Initial R oT threshold value based on the aforesaid NLM parts 218 that measure the path loss of one or more access points.

Next, in this example, Service Access Point 204 can enter cycle of training with the path loss measured value of request from one or more equipment (for example equipment 202) to one or more access points (for example access point 206).In one example, as mentioned above, when at first measuring with definite down-link transmitting power, NLM parts 218 can have the identifier (for example, main scrambler (PSC)) of the Service Access Point of collecting.Path-loss difference calculating unit 220 can be to equipment (for example equipment 202) request path loss measurement value, and can correspondingly these identifiers be assigned to these equipment.These equipment (for example equipment 202) can use path loss measurement component (for example the path loss measurement component 208) to measure one or more path loss in the access point of sign.In addition, run at path loss measurement component 208 in the situation of extra access point, path loss reporting unit 210 can report to this path loss Service Access Point 204, and path-loss difference calculating unit 220 can add the identifier of extra access point in the tabulation of fixed identifier to.

In case collect the path loss measured value from these equipment (for example equipment 202) to one or more access points (for example access point 206), path-loss difference calculating unit 220 can be for each report of access point generation pass loss difference or cumulative density function (DCF) of receiving its path loss measured value.For example, for each the path loss measured value PL for Service Access Point 204 by device report _F, path-loss difference calculating unit 220 can be to k the path loss sampling PL to another access point of equipment in immediate time report _{M, k}Position, and calculating path loss difference PL _{M, k}-PL _FTherefore, path-loss difference calculating unit 220 can be for the PL of each report _FCalculate one group of PL _{M, k}-PL _F, and can construct corresponding path-loss difference CDF.In another example, path-loss difference calculating unit 220 can be based on the PL that reports during cycle of training _FCDF is constructed in sampling.As described, RoT threshold value determining means 214 can for example be used path-loss difference CDF(in the process that the RoT threshold value is determined, by the Func1 shown in above using or the path loss CDF among the Func2).

With reference to Fig. 3, show the example wireless communications 300 for generation pass loss difference CDF.System 300 comprises with access point 304 and communicates to receive equipment 302 to the access of wireless network.System 300 also comprises access point 206, can comprise interference to the equipment that communicates with access point 206 when equipment 302 may disturb this interference of access point 206(during to access point 304 transmitted signal potentially).Aspect this, for example, near access point 304 and/or access point 206 can be deployed in each other.As described, equipment 302 can be UE, modulator-demodulator etc., access point 304 and/access point 206 can be respectively macrocell access point, Femto cell access point or picocell access point etc.

Equipment 302 can comprise for determining to the path loss measurement component 208 of the path loss of one or more access points, be used for path loss is sent to the path loss reporting unit 210 of one or more similar or different access points, and be used for obtaining the measurement request receiving parts 306 of request to provide the path loss corresponding with one or more access points to measure from access point.

Access point 304 comprises the parameter receiving-member 212 for the one or more path loss measured values that acquire one or more access points from equipment, be used for determining based on these one or more path loss measured values at least in part the RoT threshold value determining means 214 of the RoT threshold value of access point 304, and the RoT threshold value setting parts 216 that are used for using at access point 304 places the RoT threshold value.Access point 304 can comprise in addition for receiving signals from one or more access points to be used for determining the NLM parts 218 that optionally are positioned at same position to the path loss of this access point, be used for determining based on the device measuring value path-loss difference calculating unit 220 of the path-loss difference between access point 304 and one or more other access point, and be used for request is sent to the measurement request parts 308 that one or more equipment are measured to carry out one or more path losses.

According to an example, as mentioned above, access point 304 can be collected for the path loss statistics of calculating the RoT threshold value.For example, path loss measurement component 208 can be to measuring to the path loss of access point (such as access point 206) of access point 304, one or more vicinities etc., and path loss reporting unit 210 can send to access point 304 with these path loss measured values.As mentioned above, parameter receiving-member 212 can obtain these path loss measured values, and RoT threshold value determining means 214 can be determined the RoT threshold value of access point 304 at least in part based on these path loss measured values.In addition, for example, measure request parts 308 can requesting service 302 and/or miscellaneous equipment carry out one or more path measurements, to help to determine the RoT threshold value.

In one example, measure and ask parts 308 can determine a group of access point that will monitor, can be according to RoT threshold value of calculating this group access point from each equipment to path loss of this group access point to suppress the interference to this group access point.For example, measure request parts 308 and can scan main scrambler (PSC) scope with NLM parts 218, or other access point identity scope, to determine the access point that signal was derived from that NLM parts 218 can receive and/or relevant residential quarter (for example access point 206).

In another example, measuring request parts 308 can determine another the one or more frequency of operation in the access point of determining, and can ask one or more equipment for these one or more definite access points at the upper inter-frequency measurements of carrying out of described another frequency of operation (for example, the primitive operation frequency of the one or more appointment in described definite access point or substituting of can be used as described primitive operation frequency).Can not be under the primitive operation frequency detects from the situation of the one or more signal in the described definite access point (for example at one or more equipment, in the situation that is lower than threshold detection signal interference ratio (SIR), receive pilot transmit power), this can help these one or more definite access points are measured.In one example, when the one or more measured value that within the given time period, do not receive in definite access point, measure request parts 308 and can determine that request measures in another frequency of operation.In addition, in one example, this another frequency of operation can be close to the one or more primitive operation frequency in the described definite access point.

Determined this group access point and/or its frequency of operation in case measure request parts 308, then as the part of cycle of training, measuring request parts 308 can be configured the one or more equipment such as equipment 302 grades, to measure and at least a portion access point (for example, comprising access point 206) and access point 304 report path losses in this group.Measure request receiving parts 306 and can obtain this request so that path loss is measured, path loss measurement component 208 is at least a portion access point from this group access point and access point 304 reception signals correspondingly, and come path loss is measured based on these signals.

In this example, path loss reporting unit 210 can send to access point 304 with the path loss to one or more access points (comprising access point 304 and access point 206) of measuring.Should be understood that, path loss measurement component 208 can be to measuring to the path loss of the extra access point with other PSC, and path loss reporting unit 210 can be reported this path loss, measures request parts 308 and can add in this group access point by the PSC that this is extra.As mentioned above, parameter receiving-member 212 can receive extra path loss measured value from equipment 302 RX path loss measurement values and/or from miscellaneous equipment.Aspect this, can receive based on different device locations the path loss measured value at least a portion access point in this group access point.Parameter receiving-member 212 can be constructed for the path loss cumulative density function (CDF) of each access point in this group or other combination of these path loss measured values based on receiving the path loss measured value at least in part.Perhaps, parameter receiving-member 212 can at least in part based on the measuring-signal from access point, carry out characterization with NLM parts 218 to the path loss of each access point in this group access point.

In case parameter receiving-member 212 obtains a plurality of path loss measured values and determines the CDF of this part access point, then parameter receiving-member 212 can also calculate the difference CDF of each access point in received this part access point of its path loss measured value.For example, for by such as each path loss measured value PL for access point 304 reports such as the equipment of equipment 302 grades _F, parameter receiving-member 212 can be determined the path loss PL to i access point by this specific device report in the immediate time _M(i).For example, parameter receiving-member 212 can be to being estimated that by i path loss measured value of this device report to determine to have that path loss measured value of nearest time, wherein, i is the quantity by the access point in the group of this device measuring.Parameter receiving-member 212 can be for the PL of each report _FThe poor PL of calculating path loss measurement value _M(i)-PL _F, and can correspondingly construct difference CDF.

Perhaps, use 218 pairs of path-loss differences of NLM parts to carry out in the situation of characterization at parameter receiving-member 212, parameter receiving-member 212 can use the path loss (for example, based on downlink transmitted power 90 decibels of (db) covering radiuss) of the hypothesis of the path loss of measurement of the access point from this group access point that NLM parts 218 obtain and access point 304 to come the calculating path loss difference.In any one example, path-loss difference of the access point in this group access point that RoT threshold value determining means 214 can be at least in part calculates based on difference CDF or other is determined the RoT threshold value of access point 304.For example, RoT threshold value determining means 214 can be at least in part based in this group access point, having a lowest path loss measured value PL _M(i) or path-loss difference measured value PL _M(i)-PL _FThe path loss of access point determine the RoT threshold value.

For example, RoT threshold value determining means 214 can be at least in part determines that based on the previous CDF that determines or difference CDF this organizes the path loss threshold value of access point.For example, can determine the path loss threshold value based on the path-loss difference of one or more reports among the CDF at least in part.In one example, the RoT threshold value determining means 214 a certain hundredths that the path loss threshold value can be defined as the path-loss difference among the CDF distribute (for example, percent n of the lowest difference value of the lowest difference value of report, report etc.).As mentioned above, in any case, RoT threshold value setting parts 216 can use the RoT threshold value of access point 304.

With reference to figure 4, show the example wireless communications 400 of adjusting for to accessing spot noise substrate or RoT threshold value.System 400 comprises the equipment 402 that communicates to be linked into wireless network with one or more access points 404 and/or 406.As mentioned above, for example, it may comprise interference to the equipment that communicates with access point 406 to equipment 402 may disturbing potentially access point 406(in access point 404 transmitted signals) and/or vice versa.Aspect this, for example, near access point 404 and/or 406 can be deployed in each other.As mentioned above, equipment 402 can be UE, modulator-demodulator etc., and each in the access point 404 and/or 406 can be macrocell access point, Femto cell access point or picocell access point etc.

Access point 404 can comprise for the selectable NLM parts 408 that receive signal from one or more access points, and be used for the interference determining means 410 that (for example, at least in part based on its through-put power) determines the level of the interference that caused potentially by one or more access points.Access point 404 can also optionally comprise for the noise floor adjustment component 412 of coming the noise floor of access point 404 is regulated based on the potential interference of determining at least in part, be used at least in part coming RoT threshold value adjustment component 414 that the RoT threshold value of access point 404 is regulated based on the potential interference of determining, and/or is used for asking one or more access points to provide the SHO device request parts 416 of identifier list of one or more equipment of SHO access to it.

According to an example, access point 404 can be launched with the power different from access point 406.For example, provide to equipment 402 in the situation of serving and launching with higher power at access point 406, equipment 402 may physically closer to access point 404, still may so still communicate with access point 406 owing to higher through-put power.This may cause the interference to access point 404.In one example, as access point 404 initialized parts or based on one or more events or other trigger (for example, timer, detect the existence of new access point etc.), disturb determining means 410 can differentiate the potential interference that may be caused by the access point (for example access point 406) of one or more vicinities, and can suppress this potential interference to one or more parameter adjustment of access point 404.

In one example, access point 404 can obtain the pilot transmission power of access point 406 and/or one or more other contiguous access points.For example, NLM parts 408 can detect the signal from the access point (for example access point 406) of one or more vicinities, and its downlink pilot through-put power is determined in the processing of can be at least in part carrying out based on the measurement that this signal is carried out, to the data that represent in this signal etc.In another example, disturb determining means 410 can receive from access point management server or other core network component etc. the downlink pilot through-put power of the access point of one or more vicinities.In any case, interference determining means 410 can correspondingly be determined existence and/or the total amount from the potential interference of these one or more access points.In one example, disturbing determining means 410 to compare based on the downlink transmitted power with described downlink transmitted power and access point 404 determines this.

For example, based on the possible interference of determining, noise floor adjustment component 412 can be adjusted the noise floor of access point 404.In one example, disturb determining means 410 can determine the strongest downlink pilot through-put power of or observation that receive by NLM parts 408 (for example, in the situation of the access point of single or multiple vicinities).Noise floor adjustment component 412 can be come according to following formula noise floor is adjusted, for example:

XdB=max(0,Own_Pilot_TxPwr-Strongest_Pilot_TxPw?r)

Wherein, Own_Pilot_TxPwr is the through-put power of access point 404, and Strongest_Pilot_TxPwr is the through-put power of the strongest contiguous access point (for example, access point 406).For example, by improving the noise floor of access point 404, the equipment that communicates with it can increase through-put power to suppress to disturb the impact on access point 404.Aspect this, for example, access point 404 can be in the process that communicates with one or more equipment (for example, based on the power that receives in the power control command of these one or more equipment) strengthens the noise floor after regulating.For example, noise floor adjustment component 412 can be regulated the up-link power control algolithm by interference and the noise power of virtual noise power being added to estimation, calculates to carry out pilot tone SNR.In addition, for example, one or more equipment can inject extra noise based on the adjustment of noise floor, regulate RF front end attenuator etc.

In another example, noise floor adjustment component 412 can adaptively the noise floor of access point 404 be adjusted based on the level of disturbing (for example, based on the interference that receives from equipment 402) outside the residential quarter of estimating when communicating with access point 406.For example, the level to the interference of access point 404 can be measured or estimate to interference determining means 410, its can be included in the dead time interval or At All Other Times the section in (for example, use NLM parts 408) noise level is measured, the transmitted signal that is received by NLM parts 408 is measured, and based on determining noise level etc. on the signal in order to send from the power of the signal of access point 404.In any case, for example, noise floor adjustment component 412 can be according to adaptively noise floor adjusting with the similar formula of following formula:

YdB=max(0,min(XdB,Out_of_Cell_Intf_dB+Margin_dB))

Wherein, Out_of_Cell_Intf_dB is the outer interference level in residential quarter of measuring or estimate, Margin_dB is steady state value, its based on the noise floor of increase so that outside the residential quarter interference can ignore.Therefore, be 0 situation for outer interference the in the residential quarter of estimating, will not increase noise floor, to prevent because the increase of noise floor so unnecessarily increase the transmitting power of equipment.

In another example, be not that noise floor is adjusted or except noise floor is adjusted, RoT threshold value adjustment component 414 can be according to the RoT threshold value of regulating access point 404 by the potential or actual interference of disturbing determining means 410 to determine or one or more access point.In one example, as implied above, RoT threshold value adjustment component 414 can be regulated the RoT threshold value of access point 404 at least in part based on the XdB that calculates.For example, RoT threshold value adjustment component 414 can be based on following formula or the similarly formula adjustment of calculating the RoT threshold value:

So that the RoT threshold value is corresponding with XdB according to function, what this function can be linear in this example, but at the function that can use equally other kind aspect this.Similarly, as described in one example, disturbing determining means 410 to detect in the situation about disturbing outside the residential quarter, RoT threshold value adjustment component 414 can be adjusted the RoT threshold value.In addition, RoT threshold value adjustment component 414 can be as described in Fig. 2 similarly limits interference to nigh other access point according to the upper limit of the RoT threshold value that calculates.

In another example, equipment 402 can be served by access point 406, and can be in the process of SHO with access point 404(for example, with access point 406) carry out communicating by letter of user platform data.In this example, the uplink transmission power (for example, by power adjustment commands being sent to equipment 402) that access point 404 and 406 all can control appliance 402.In some instances, for example equipment 402 closer to access point 406 but in the less situation of the path loss of access point 404, access point 404 can be turned down the through-put power of equipment 402, and access point 406 is attempted the through-put power of increase equipment 402.In this example, noise floor adjustment component 412 can be adjusted the noise floor of estimating, to be used for not regulated by the power algorithm of the equipment of access point 404 services in the process of SHO.Therefore, for example, SHO device request parts 416 can be to the tabulation of this one or more access points (for example access point 406) request identifier corresponding with the equipment of being served by one or more access points in the process of SHO.

In this example, noise floor adjustment component 412 can be at least in part based on coming calculating noise substrate adjustment by interference reality or possible of disturbing determining means 410 to determine.Then, noise floor adjustment component 412 can be come being identified by equipment access point 406 or one or more other access point services, that communicate with access point 404 in the process of SHO based on the device identifier that receives, and can come the up-link power of these equipment of subtend (for example equipment 402) to distribute based on the noise floor that calculates at least in part and regulate.Therefore, the increase of the noise floor of access point 404 is sent to equipment 402 can make equipment 402 increase transmitting powers, this can improve the control channel quality between equipment 402 and the access point 406.In this example, noise floor adjustment component 412 can be avoided the adjustment of noise floor is sent to the equipment of being served by access point 404, with the interference to access point 406 or other access point that suppresses to be caused potentially by these equipment.

With reference to Fig. 5 to Fig. 9, show and one or more parameter adjustment of Femto cell access point are suppressed to disturb relevant illustrative methods.Although in order to simplify the purpose of explanation, these methods are illustrated and are described as sequence of operations, but, should be appreciated that and be clear that, these methods are not subjected to the restriction of operating sequence, this is because according to one or more embodiment, certain operations can occur and/or occur simultaneously with other operation that illustrates herein and describe by different order.For example, should be understood that method also can be expressed as a series of state or the events of being mutually related in for example state diagram alternatively.In addition, in order to realize the method according to one or more embodiment, be not shown all operations were all be essential.

With reference to figure 5, show the illustrative methods 500 that helps to determine the RoT threshold value.At 502 places, one or more parameters are corresponding to one or more access points.For example, one or more parameters can be corresponding to the radio condition of the one or more access points path loss of these one or more access points (for example, to), one or more access point with respect to the position of Femto cell access point etc.In addition, in one example, can be therefore (for example, based on the request to measuring as the part of cycle of training) receive these one or more parameters from NLM, one or more equipment etc.In addition, for example, these one or more parameters can relate to aforesaid maximum transmission power, path loss statistics etc., and can come thus to determine the RoT threshold value.At 504 places, can determine at least in part the RoT threshold value of Femto cell access point based on these one or more parameters.At 506 places, can arrange the RoT threshold value at Femto cell access point place.For example, this may make one or more equipment that the through-put power that is used for communicating with this Femto cell access point is adjusted.

Forward Fig. 6 to, show the illustrative methods 600 of the RoT threshold value of determining the Femto cell access point.At 602 places, can receive one or more path loss measured values of one or more access points.As mentioned above, this can be based on (for example, as the part of cycle of training or the otherwise) request to measuring.In addition, can receive this path loss measured value from equipment, the NLM etc. that is arranged in the same position of access point.At 604 places, can obtain to be supplied to the maximum transmission power of one or more equipment.For example, this can determine by one or more parts of supply maximum transmission power.At 606 places, can determine the RoT threshold value based on one or more path loss measured values and maximum transmission power at least in part.As mentioned above, can calculate the RoT threshold value in path loss measured value and the maximum transmission power each, and can the minimum value in these two be set to the RoT threshold value.

With reference to Fig. 7, show for the illustrative methods 700 of determining the RoT threshold value.At 702 places, one or more equipment can be configured to the path loss of at least a portion access point in the set of one or more access points is measured and reported.For example, as mentioned above, can (for example, by receive the tabulation of one or more access points from network components, equipment etc., by detect these one or more access points etc. via NLM) determine a group of access point.In this example, can organize from this at one or more equipment in the situation of access point reception signal, can send request so that path loss of this group access point is measured to one or more equipment.At 704 places, can receive the path loss measured value of the described part the set from these one or more equipment to one or more access points.For example, as mentioned above, this can comprise that reception can determine path loss or similarly power measurement values or other measured value of parameter (for example, RSCP, CPICH transmitting power etc.).At 706 places, can construct path-loss difference CDF for the described at least part in one or more access points set based on the path loss measured value that receives.As mentioned above, this can comprise determines to organize the path loss measurement that the one or more access points in the access point receive for this, and therefrom deducts another path loss.At 708 places, aforesaid, determine the RoT threshold value based on path-loss difference CDF at least in part.

Go to Fig. 8, show the illustrative methods 800 that suppresses to disturb for to one or more parameter adjustment of access point.At 802 places, can the strongest transmitting power of one or more access points be detected.For example, this can comprise from nigh one or more access points and receive signals (for example, use NLM and/or from one or more equipment), and determine which access point has the strongest signal power.At 804 places, can determine whether this strongest transmitting power has surpassed the employed transmitting power in Femto cell access point place.At 806 places, can whether surpass described transmitting power based on this strongest transmitting power at least in part and come the noise floor of estimating at least of Femto cell access point is adjusted.In one example, can come the noise floor of estimating is adjusted above the amount of described transmitting power by the strongest transmitting power.In another example, can adjust the noise floor of estimating based on disturbing outside the residential quarter in addition.In addition, for example, can whether surpass described transmitting power based on the strongest transmitting power equally and come the RoT threshold value is adjusted.

With reference to figure 9, show the illustrative methods 900 that helps to strengthen at one or more equipment the noise floor increase.At 902 places, may be received in the process of SHO the identifier by one or more equipment of one or more access points services.For example, this can be at least in part based on the request to these parameters.At 904 places, can determine to increase the noise floor of estimation.For example, this can be at least in part based on detecting at the access point place than the stronger through-put power of through-put power of using.In addition, the noise floor of estimation can be specific to one or more equipment.At 906 places, can in the process that communicates with one or more equipment, strengthen the increase of the noise floor of estimating.Aspect this, as mentioned above, do not increase and strengthen noise floor at serviced equipment, but for the equipment by other access point service of using SHO to communicate.

Should be understood that as mentioned above, according to one or more aspects described herein, can make inference to calculating RoT threshold value, noise floor adjustment etc.Term as used herein " deduction " or " inference " typically refer to according to the process of coming system, environment and/or user's state is carried out reasoning or deduction by one group of observed quantity of event and/or data acquisition.For example, can identify specific context or operation with inference, maybe can produce the probability distribution of state.This inference can be probabilistic, that is to say, according to the data of considering and event, the probability distribution of the state paid close attention to is calculated.Inference can also refer to for the technology that consists of advanced event according to one group of event and/or data.This inference be so that can construct new event or operation according to the event data of one group of event of observing and/or storage, and no matter whether event relevant in the hand-to-hand time, also no matter event and data whether from one or several events and data source.

Figure 10 is the schematic diagram that helps mobile device 1000 that path loss measurement value is reported.Mobile device 1000 comprises receiver 1002, receiver 1002 receives signal, the signal that receives (is for example carried out typical operation from for example reception antenna (not shown), filtering, amplification, down-conversion etc.), and the signal after regulating is carried out digitlization sample with acquisition.Receiver 1002 can comprise demodulator 1004, and demodulator 1004 can carry out demodulation and provide it to processor 1006 to carry out channel estimating the symbol that receives.Processor 1006 can be to be exclusively used in analyzed and/or generated the processor for the information of being launched by transmitter 1008 by the information of receiver 1002 receptions, can be the processor of one or more parts of control mobile device 1000, and/or can be not only to have analyzed the information that received by receiver 1002, generate and be used for by the information of transmitter 1008 emissions but also control the processor of one or more parts of mobile device 1000.

Mobile device 1000 can comprise memory 1010 in addition, memory 1010 operationally is coupled to processor 1006 and can stores the data that will send, the data of reception, the information relevant with available channel, the data that are associated with the signal of having analyzed and/or interference strength, information relevant with the channel that distributes, power, speed etc., and is used for estimating channel and any other suitable information of communicating via channel etc.Memory 1010 can store in addition with estimate and/or use channel (for example, based on performance, based on capacity etc.), report path loss etc. the agreement and/or the algorithm that are associated.

Should be understood that data storage described herein (for example, memory 1010) can be volatile memory or nonvolatile memory, perhaps can comprise volatile memory and nonvolatile memory the two.For example and without limitation, nonvolatile memory can comprise read-only memory (ROM), programming ROM (PROM), electrically programmable ROM(EPROM), electric erasable PROM(EEPROM) or flash memory.Volatile memory can comprise the random-access memory (ram) as external cache.For example and without limitation, RAM has multiple available form, for example synchronous random access memory (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate SDRAM(DDR SDRAM), enhancement mode SDRAM(ESDRAM), synchronization links DRAM(SLDRAM) and direct Rambus RAM(DRRAM).The memory 1010 of the application's system and method is intended to include, without being limited to the memory of these and any other suitable type.

Processor 1006 can also optionally operationally be coupled to can with path loss measurement component 208 similar path loss measurement components 1012, can with path loss reporting unit 210 similar path loss reporting units 1014 and can with measure request parts 306 and similarly measure request receiving parts 1016.Mobile device 1000 also comprises

demodulator

1018, and 1018 pairs of signals of demodulator carry out demodulation in order to send to such as base station, another mobile device etc. by transmitter 1008.In addition, for example, as mentioned above, mobile device 1000 can comprise that a plurality of transmitters 1008 are to be used for a plurality of network interfaces.Although path loss measurement component 1012, path loss reporting unit 1014, measurement request receiving parts 1016, demodulator 1004 and/or modulator 1018 are depicted as with processor 1006 and separate, but will be appreciated that they can be the parts of processor 1006 or a plurality of processor (not shown).

Figure 11 is the schematic diagram that helps to use the system 1100 that radio communication and one or more equipment communicates.System 1100 comprises it can being that the base station is (for example arbitrarily basically, such as Femto cell, the small base station of picocell etc., mobile base station etc.), the base station 1102 of relay station etc., base station 1102 has receiver 1110 and transmitter 1140, wherein receiver 1110 by a plurality of reception antenna 1106(for example, can have aforesaid multiple network technology) receive signal from one or more mobile devices 1104, transmitter 1140 by a plurality of transmitting antenna 1108(for example can have aforesaid multiple network technology) launch to one or more mobile devices 1104.In addition, in one example, transmitter 1140 can be launched to mobile device 1104 by wired forward link.Receiver 1110 can be from one or more reception antenna 1106 reception information, and operationally are associated with the demodulator 1112 that the information that receives is carried out demodulation.In addition, in one example, receiver 1110 can receive from wired back haul link.Can analyze by 1114 pairs of symbols through demodulation of processor, processor 1114 can be with top similar and be coupled to memory 1116 with reference to the described processor of Figure 10, the information that memory 1116 storage and estimated signal (for example, pilot tone) intensity and/or interference strength are relevant, to send to mobile device 1104(or different base station (not shown)) or from mobile device 1104(or different base station (not shown)) data that receive and/or any other suitable information relevant with carrying out various operations that this paper provides or function.

Processor 1114 also optionally be coupled to can with parameter receiving-member 212 similar parameter receiving-members 1118, can with RoT threshold value determining means 214 similar RoT threshold value determining meanss 1120, can with RoT threshold value setting parts 216 similar RoT threshold value setting parts 1122, can with NLM parts 218 and/or 408 similar NLM parts 1124, can and/or can similarly measure request parts 1128 with measurement request parts 308 with path-loss difference calculating unit 220 similar path-loss difference parts 1126.In addition, for example, processor 1114 can also optionally be coupled to can with disturb determining means 410 similarly disturb determining meanss 1130, can with noise floor adjustment component 412 similar noise floor adjustment component 1132, can with RoT threshold value adjustment component 414 similar RoT threshold value adjustment component 1134 and/or can with SHO device request parts 416 similar SHO device request parts 1136.

In addition, for example, processor 1114 can use 1138 pairs of signals that will send of modulator to modulate, and sends modulated signal with transmitter 1140.Transmitter 1140 can send signal to mobile device 1104 by Tx antenna 1108.In addition, although parameter receiving-member 1118, RoT threshold value determining means 1120, RoT threshold value setting parts 1122, NLM parts 1124, path-loss difference calculating unit 1126, measure request parts 1128, disturb determining means 1130, noise floor adjustment component 1132, RoT threshold value adjustment component 1134, SHO device request parts 1136, demodulator 1112 and/or modulator 1138 are depicted as with processor 1114 and separate, but should be understood that, they can be the parts of processor 1114 or a plurality of processor (not shown), and/or are stored in the memory 1116 to be carried out by processor 1114 as instruction.

With reference to Figure 12, show the system 1200 that determines the RoT threshold value.For example, system 1200 can be positioned within access point etc. at least in part.Should be understood that system 1200 is represented as comprises functional block, the functional block of these functional blocks function that can be expression be realized by processor, software or its combination (for example, firmware).System 1200 comprises the logical groups 1202 of electronic unit that can joint operation.For example, logical groups 1202 can comprise for the electronic unit 1204 that receives the one or more parameters corresponding with one or more access points.As mentioned above, for example, these one or more parameters can correspond to position (for example, absolute position or with respect to the position of Femto cell access point or other reference point) of the path loss measured value of described one or more access points, described one or more access points etc.

In addition, logical groups 1202 can comprise for the electronic unit 1206 of determining at least in part the RoT threshold value of Femto cell access point based on one or more parameters.For example, as mentioned above, can determine that the RoT threshold value is to suppress the interference to one or more equipment.In addition, logical groups 1202 can comprise for the electronic unit 1208 that the RoT threshold value is set at Femto cell access point place.As mentioned above, for example, this may cause the equipment that communicates with this Femto cell access point to reduce through-put power, and this can suppress interference that one or more other access points are caused.In one example, as mentioned above, electronic unit 1204 can comprise parameter receiving-member 212.As mentioned above, for example, electronic unit 1206 can comprise RoT threshold value determining means 214.In addition, as mentioned above, for example, in one aspect, electronic unit 1208 can comprise RoT threshold value setting parts 216.

In addition, system 1200 can comprise memory 1210, and memory 1210 is preserved for the instruction of execution with

electronic unit

1204,1206 and 1208 functions that are associated.Although one or more being shown in the outside of memory 1210 in the

electronic unit

1204,1206 and 1208 should be understood that they may reside in the inside of memory 1210.In one example,

electronic unit

1204,1206 and 1208 can comprise at least one processor, and perhaps each in the

electronic unit

1204,1206 and 1208 can be the corresponding module of at least one processor.In addition, in other or selectable example,

electronic unit

1204,1206 and 1208 can be the computer program that comprises computer-readable medium, and wherein, each in the

electronic unit

1204,1206 and 1208 can be corresponding code.

With reference to Figure 13, show the system 1300 that one or more parameter adjustment of Femto cell access point are suppressed to disturb.For example, system 1300 can be positioned at an equipment etc. at least in part.Should be understood that system 1300 is represented as comprises functional block, the functional block of these functional blocks function that can be expression be realized by processor, software or its combination (for example, firmware).System 1300 comprises the logical groups 1302 of electronic unit that can joint operation.For example, logical groups 1302 can comprise the electronic unit 1304 for detection of the strongest transmitting power of one or more access points.As mentioned above, for example, this can comprise that receiving signal from the access point of one or more vicinities also determines the strongest signal these signals.

In addition, logical groups 1302 can comprise for coming electronic unit 1306 that the noise floor of the estimation of Femto cell access point is adjusted based on determining of carrying out of the transmitting power that whether the strongest transmitting power is surpassed the Femto cell access point at least in part.As mentioned above, for example, electronic unit 1306 can noise floor be set to the poor of these transmitting powers.As mentioned above, for example, electronic unit 1304 can comprise interference determining means 410.In addition, for example, in one aspect, as mentioned above, electronic unit 1306 can comprise noise floor adjustment component 412.

In addition, system 1300 can comprise memory 1308, and memory 1308 is preserved the instruction that is used for carrying out the function that is associated with electronic unit 1304 and 1306.Although one or more being shown in the outside of memory 1308 in

electronic unit

1304 and 1306 should be understood that they may reside in the memory 1308.In one example,

electronic unit

1304 and 1306 can comprise at least one processor, and perhaps each in the

electronic unit

1304 and 1306 can be the corresponding module of at least one processor.In addition, in other or selectable example,

electronic unit

1304 and 1306 can be the computer program that comprises computer-readable medium, and wherein, each in the

electronic unit

1304 and 1306 can be corresponding code.

Referring now to Figure 14, show the wireless communication system 1400 of each embodiment that provides according to this paper.System 1400 comprises base station 1402, and base station 1402 can comprise a plurality of antenna sets.For example, an antenna sets can comprise

antenna

1404 and 1406, and another antenna sets can comprise

antenna

1408 and 1410, and another antenna sets can comprise antenna 1412 and 1414.Show two antennas for each antenna sets; Yet, for each antenna sets, can use more or antenna still less.Should be understood that, base station 1402 can comprise transmitter chain and receiver chain in addition, wherein each in transmitter chain and the receiver chain can correspondingly comprise a plurality of parts (for example, processor, modulator, multiplexer, demodulator, demodulation multiplexer, antenna etc.) that are associated with signal emission and signal reception.

Base station 1402 can communicate with the one or more mobile devices such as mobile device 1416 and mobile device 1422 etc.; Yet, should be understood that base station 1402 can with mobile device 1416 and 1422 similarly basically the mobile devices of any amount communicate.Mobile device 1416 and 1422 can be any other suitable equipment of communicating at wireless communication system 1400 of cell phone, smart phone, laptop computer, hand-held communication device, Handheld computing device, satellite radio devices, global positioning system, PDA and/or be used for for example.As mentioned above, mobile device 1416 communicates with antenna 1412 and 1414, wherein, antenna 1412 and 1414 on the forward link 1418 information sent to mobile device 1416 and on reverse link 1420 from mobile device 1416 reception information.In addition, mobile device 1422 communicates with antenna 1404 and 1406, wherein, antenna 1404 and 1406 on the forward link 1424 information sent to mobile device 1422 and on reverse link 1426 from mobile device 1422 reception information.For example, in Frequency Division Duplexing (FDD) (FDD) system, forward link 1418 can use the frequency band different from reverse link 1420 employed frequency bands, and forward link 1424 can use the frequency band different from reverse link 1426 employed frequency bands.In addition, in time division duplex (TDD) system, forward link 1418 and reverse link 1420 can use common band, and forward link 1424 and reverse link 1426 can use common band.

Each antenna sets and/or the zone of specifying these antenna to communicate therein can be called the sector of base station 1402.The mobile device that for example, antenna sets can be designed in the sector in the zone that covers with base station 1402 communicates.When

forward link

1418 and 1424 communicates, the transmitting antenna of base station 1402 can improve for the forward link 1418 of

mobile device

1416 and 1422 and 1424 signal to noise ratio with beam forming.In addition, send to its all mobile devices by individual antenna with the base station and to compare, use beam formings when interspersing among randomly

mobile device

1416 and 1422 in the coverage that is associated and send when base station 1402, the mobile device in the adjacent cell may suffer interference still less.In addition,

mobile device

1416 and 1422 can use described equity or certainly organize each other direct communication of technology.According to an example, system 1400 can be multiple-input and multiple-output (MIMO) communication system.In addition, as mentioned above, for example, interference to other access point (not shown) can be avoided to RoT threshold value, noise floor or other parameter setting based on disturbing etc. in base station 1402 outside one or more path loss measured values of one or more access points, the residential quarter that detects.

Figure 15 shows exemplary wireless communication system 1500.For the sake of brevity, wireless communication system 1500 has been described a base station 1510 and a mobile device 1550.Yet, should be understood that, system 1500 can comprise more than one base station and/or more than one mobile device, and wherein, extra base station and/or mobile device can be substantially similar or different from exemplary base 1510 and mobile device 1550 as described below.In addition, should be understood that base station 1510 and/or mobile device 1550 can use system described herein (Fig. 1 to Fig. 4 and Figure 11 to Figure 14), mobile device (Figure 10) and/or method (Fig. 5 to Fig. 9) to promote therebetween radio communication.For example, the parts of system as herein described and/or method or function can be memory 1532 as described below and/or 1572 or the part of processor 1530 and/or 1570, and/or can be carried out in order to carry out disclosed function by processor 1530 and/or 1570.

1510 places in the base station provide the business datum of a plurality of data flow from data source 1512 to launching (TX) data processor 1514.According to an example, can send each data flow by corresponding antenna.TX data processor 1514 is according to coming this data flow is formatd, encodes and interweaves for the selected specific coding scheme of business data flow, in order to coded data is provided.

Can use OFDM (OFDM) technology to carry out coded data and the pilot data of each data flow multiplexing.In addition or replacedly, frequency pilot sign can be (FDM), time-multiplexed (TDM) of frequency division multiplexing, perhaps (CDM) of code division multiplexing.The known data pattern that pilot data is normally processed in known manner, and can use pilot data at mobile device 1550 places in order to estimate channel response.Can according to be the selected specific modulation scheme of each data flow (for example, binary phase shift keying (BPSK), Quadrature Phase Shift Keying (QPSK), M phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM) etc.) (for example modulate, sign map) this data flow through multiplexing pilot data and coded data, in order to modulation symbol is provided.Data rate, coding and the modulation of each data flow can be provided by the instruction of being carried out by processor 1530 or provide.

The modulation symbol of data flow can be offered TX MIMO processor 1520, this processor can (for example, for OFDM) further be processed these modulation symbols.Then, TX MIMO processor 1520 is with N _TIndividual stream of modulation symbols offers N _TIndividual transmitter (TMTR) 1522a to 1522t.In each embodiment, the symbol of 1520 pairs of data flow of TX MIMO processor and the antenna applications beam forming weight of launching this symbol.

Each transmitter 1522 receives also to be processed corresponding symbol and flows to provide one or more analog signals, and further regulates (for example, amplification, filtering and up-conversion) analog signal and be suitable for the modulation signal that transmits at mimo channel in order to provide.In addition, respectively from N _TIndividual antenna 1524a to 1524t emission is from the N of transmitter 1522a to 1522t _TThe signal of individual modulation.

At mobile device 1550 places, N _RIndividual antenna 1552a to 1552r receives the modulation signal of launching, and will offer from the reception signal of each antenna 1552 corresponding receiver (RCVR) 1554a to 1554r.Each receiver 1554 is regulated (for example, filtering, amplification and down-conversion) corresponding signal, and the signal after regulating is carried out digitlization in order to sampling is provided, and further processes these samplings in order to corresponding " reception " symbol stream is provided.

RX data processor 1560 can be from N _RIndividual receiver 1554 places receive N _RIndividual symbol stream, and according to the N of specific receiver treatment technology to receiving _RIndividual symbol stream is processed, in order to N is provided _TIndividual " detection " symbol stream.RX data processor 1560 can carry out demodulation, deinterleaving and decoding to each symbol stream that has detected, in order to recover the business datum of this data flow.Processing by 1560 execution of RX data processor is complementary with the processing of being carried out by TX MIMO processor 1520 and the TX data processor 1514 at 1510 places, base station.

Reverse link message can comprise the various types of information relevant with communication link and/or the data flow that received.Reverse link message can be processed by TX data processor 1538, modulated by

modulator

1580,1554a to 1554r regulates by transmitter, and sends it back base station 1510, and wherein TX data processor 1538 also receives the business datum of a plurality of data flow from data source 1536.

1510 places in the base station, modulated signal from mobile device 1550 is received by antenna 1524, is regulated by receiver 1522, carries out demodulation by demodulator 1540, and processed by RX data processor 1542, to extract the reverse link message that is sent by mobile device 1550.In addition, processor 1530 can be processed the message of extracting, to determine which pre-coding matrix determining the beam forming weight with.

Processor

1530 and 1570 can instruct respectively the operation at (for example, control, adjustment, management etc.) base station 1510 and mobile device 1550 places.Corresponding processor 1530 and 870 can be associated with program code stored and data storage device 1532 and 1572.As mentioned above,

processor

1530 and 1570 can be determined RoT threshold value, noise floor adjustment, path loss measured value etc.

Figure 16 shows the wireless communication system 1600 that is configured to support a plurality of users, can realize at wireless communication system 1600 instruction of this paper.System 1600 to a plurality of residential quarter 1602(for example, macrocell 1602A-1602G) communication is provided, wherein each residential quarter by corresponding access node 1604(for example is, access node 1604A-1604G) service.As shown in figure 16, for example access terminal 1606(, 1606A-1606L accesses terminal) can be distributed in time each position of whole system.Each accesses terminal and 1606 can be engraved in forward link (FL) and/or reverse link (RL) is upper communicates with one or more access nodes 1604 when given, this depend on for example access terminal 1606 whether movable and access terminal whether be in soft changing state.Wireless communication system 1600 can provide service in larger geographic area.

Figure 17 shows one or more femto nodes therein and is deployed in example communication system 1700 in the network environment.Specifically, system 1700 for example comprises a plurality of femto nodes 1710A of being installed in (for example, in one or more users residence 1730) in the relatively small-scale network environment and 1710B(, femto nodes or H (e) NB).Each femto nodes 1710 can for example be coupled to wide area network 1740(, the internet by Digital Subscriber Line (DSL) router, cable modem, Radio Link or other connected mode (not shown)) and mobile operator core net 1750.As discussed below, each femto nodes 1710 can be configured to serve be associated for example access terminal 1720(, 1720A accesses terminal) and externally alternatively for example access terminal 1720(, 1720B accesses terminal).In other words, can limit the access of femto nodes 1710 so that given access terminal 1720 can by one group of appointment (for example, family) femto nodes 1710 service and for example can't help any non-designated femto nodes 1710(, neighbours' femto nodes) service.

Figure 18 shows and has defined therein several tracing area 1802(or Routing Area or the band of position) the example of coverage diagram 1800, wherein each tracing area comprises several grand overlay areas 1804.Here, described by thick line with the overlay area that

tracing area

1802A, 1802B and 1802C are associated, and grand overlay area 1804 is represented by hexagon.Tracing area 1802 also comprises femto overlay area 1806.In this example, each the femto overlay area in the femto overlay area 1806 (for example, femto overlay area 1806C) for example is depicted in grand overlay area 1804(, grand overlay area 1804B) in.Yet, should be understood that femto overlay area 1806 can not exclusively be positioned at grand overlay area 1804.In fact, can be at given tracing area 1802 or a plurality of femto areas of coverage 1806 of grand overlay area 1804 interior definition.In addition, can be at given tracing area 1802 or the one or more slight overlay area of 1804 interior definition, grand overlay area (not shown).

Referring again to Figure 17, the owner of femto nodes 1710 can order Information Mobile Service, for example, and the 3G Mobile Service that provides by mobile operator core net 1750.In addition, access terminal and 1720 can be operated in grand environment and more small-scale (for example, residence) network environment in the two.Therefore, for example, according to accessing terminal 1720 current location, accessing terminal 1720 can be by access node 1760 service or by one group of femto nodes 1710(for example, is arranged in femto nodes 1710A and the 1710B in corresponding user residence 1730) any one femto nodes serve.For example, when the user stayed out, he was served by the macrocell access node of standard (for example, node 1760), and when the user was in, he was served by femto nodes (for example, node 1710A).Should be understood that femto nodes 1710 can back compatible access terminal 1720 in existing here.

Can be deployed in femto nodes 1710 on the single frequency or be deployed on a plurality of frequencies.According to specific configuration, the one or more frequencies in single frequency or a plurality of frequency can with one or more frequency overlaps of being used by macrocell access node (for example, node 1760).In some respects, whenever accessing terminal 1720 when being possible with the connection of preferred femto nodes (for example, family's femto nodes of 1720 accesses terminal), accessing terminal 1720 can be configured to be connected to this preferred femto nodes.For example, whenever accessing terminal 1720 when being positioned at user's residence 1730, accessing terminal 1720 can communicate with family femto nodes 1710.

In some respects, if access terminal 1720 the 1750 interior operations of mobile operator core net but (for example be not positioned at its most preferred network, as defined in preferred roaming list) on, access terminal so and 1720 can use better system gravity treatment (BSR) (for example to continue to search for most preferred network, femto nodes 1710), this can comprise that whether available and make great efforts subsequently to carry out related with these preferred systems available system is carried out intermittent scanning current to determine better system.In one example, access terminal and 1720 can catch table input (for example, in preferred roaming list) by use and limit the search for special frequency band and channel.For example, can repeat termly search to most preferred system.When the preferred femto nodes found such as femto nodes 1710 grades, access terminal and 1720 select femto nodes 1710 in order to reside in its area of coverage.

In some respects, femto nodes can be limited.For example, given femto nodes can only access terminal some service to some is provided.In having the related deployment of so-called limited (perhaps enclosed type), given accessing terminal can be only by macrocell mobile network and one group of predetermined femto nodes (for example, being arranged in the femto nodes 1710 in corresponding user residence 1730) service.In some implementations, femto nodes can be restricted to not and in signaling, data access, registration, paging or the service at least one to be offered at least one access terminal.

In some respects, limited femto nodes (also can be described as closed user group H (e) NB) is service to be offered one group the limited femto nodes that accesses terminal is set.In case of necessity, can be provisionally or for good and all expand this group access terminal.In some respects, closed user group (CSG) can be defined as sharing a group of access node (for example, femto nodes) of the public access control tabulation that accesses terminal.The channel that all femto nodes in the zone (perhaps all limited femto nodes) move thereon can be called the femto channel.

Therefore, between given femto nodes and given accessing terminal, can there be various relations.For example, from the angle that accesses terminal, opening femto nodes can refer to have the not femto nodes of restricted association.(for example, for related and/or registration is restricted) femto nodes that limited femto nodes can refer to be restricted in some way.Family's femto nodes can refer to access terminal and be authorized to the femto nodes that accesses and move thereon.Client's femto nodes can refer to access terminal and be authorized the femto nodes of access thereon or operation temporarily.External femto nodes can refer to except possible emergency (for example, 911 call out) in addition, the femto nodes of access terminal uncommitted access thereon or operation.

From the angle of limited femto nodes, family accesses terminal and can refer to be authorized to access accessing terminal of limited femto nodes.Client accesses terminal and can refer to have accessing terminal to the interim access of limited femto nodes.External access terminal can refer to except such as the 911 possible emergencies of calling out etc., be not allowed to access the accessing terminal of limited femto nodes (for example, do not have to the voucher of limited femto nodes registration perhaps can access terminal).

For convenience's sake, herein disclosure has been described various functions under the background of femto nodes.Yet, should be understood that except larger overlay area node can provide and the same or similar function of femto nodes slightly.For example, slightly node can be limited, the slight node of family can define for given accessing terminal etc.

Wireless multiple-access communication system can be supported the communication of a plurality of wireless access terminals simultaneously.As described above, each terminal can be come to communicate with one or more base stations by the transmission on forward link and the reverse link.Forward link (or down link) refers to the communication link from the base station to the terminal, and reverse link (or up link) refers to the communication link from terminal to base station.Can set up by the system of single-input single-output system, mimo system or some other types this communication link.

Use is designed to carry out general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components or its combination in any of function described herein, can realize or carry out in conjunction with the described various exemplary logics of embodiment disclosed herein, box, module, parts and circuit.General processor can be microprocessor, and perhaps, this processor can be any traditional processor, controller, microcontroller or state machine.Processor can also be embodied as the combination of computing equipment, for example, and the combination of the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessor and DSP kernel, perhaps any other this kind structure.In addition, at least one processor can comprise one or more modules, and described module can operate to carry out one or more in above-mentioned steps and/or the action.Exemplary storage medium can be coupled to processor, thereby makes the processor can be from this read information, and can be to this storage medium writing information.Perhaps, storage medium also can be the part of processor.In addition, in some respects, processor and storage medium can be arranged in ASIC.In addition, ASIC can be arranged in user terminal.Perhaps, processor and storage medium can be used as discrete parts and are arranged in user terminal.

Aspect one or more, described function, method or algorithm can be implemented in hardware, software, firmware or its combination in any.If be implemented in the software, then can be with these functions as one or more instructions or code storage or be sent on the computer-readable medium, this computer-readable medium can cover in the computer program.Computer-readable medium comprise computer-readable storage medium and communication media the two, described communication media includes and helps the arbitrary medium of computer program from a position transfer to another position.Storage medium can be can be by any usable medium of computer access.Illustrate and without limitation, this computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other disk storage, magnetic disc store or other magnetic storage apparatus or can be used in the program code that carries or store the expectation with instruction or data structure form and any other medium that can be carried out by computer access.In addition, any connection can be called computer-readable medium basically.For example, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or such as the wireless technology of infrared ray, radio and microwave etc. from the website, server or other remote source send, then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or be included in the definition of medium such as the wireless technology of infrared ray, radio and microwave etc.Disk used herein and CD comprise compact disk (CD), laser-optical disk, CD, digital versatile disc (DVD), floppy disk and Blu-ray Disc, and wherein, disk is copy data magnetically usually, and CD is with laser optics ground copy data.Above-mentioned every combination also should be included in the scope of computer-readable medium.

Although above-mentioned disclosure has been discussed exemplary aspect and/or embodiment, should be noted that do not depart from described aspect and/or in the situation by the scope of appended claim definition of embodiment, can make various changes and modifications this paper.In addition, although can describe or the element of claimed described aspect and/or embodiment with singulative,, be limited to singulative unless offer some clarification on, otherwise it is contemplated that plural form.In addition, unless otherwise indicated, otherwise all or part of of all any aspect and/or embodiment can use with all or part of of any other side and/or embodiment.

Claims

1. method that hot noise increase (RoT) threshold value that is used for the Femto cell access point arranges comprises:

Receive the one or more parameters corresponding with one or more access points;

Determine at least in part the RoT threshold value of described Femto cell access point based on described one or more parameters; And

The place arranges described RoT threshold value at described Femto cell access point.

2. method according to claim 1, wherein, the step of the one or more parameters of described reception comprises:

Obtain at least one equipment to the first path loss measurement value of described Femto cell access point, and obtain described at least one equipment to the second path loss measured value of the second access point.

3. method according to claim 2, wherein, the step of the one or more parameters of described reception comprises:

Acquisition is from another equipment at least to the first extra path loss measurement value of described Femto cell access point, and the extra second path loss measured value of acquisition from described at least another equipment to described the second access point, and wherein, the step of described definite RoT threshold value is further at least in part based on the function of the difference between described extra the first path loss measurement value and described the second path loss measured value additionally.

4. method according to claim 2, wherein, the step of the one or more parameters of described reception also comprises:

Obtain described at least one equipment to the one or more extra path loss measured value of one or more extra access points, and wherein, the step of described definite RoT is at least in part based on the minimum value in described the second path loss measured value and the described one or more extra path loss measured value and the function of the difference between described the first path loss measurement value.

5. method according to claim 2, wherein, described at least one equipment is the network monitoring module that places altogether in the described Femto cell access point.

6. method according to claim 2 also comprises:

As the part of cycle of training, described at least one equipment is configured so that understatement is accused described the first path loss measurement value and described the second path loss measured value.

7. method according to claim 1 also comprises:

Determine the maximum transmission power of the equipment that communicates with described Femto cell access point; And

Determine another RoT threshold value based on described maximum transmission power at least in part.

8. method according to claim 7, wherein, the described step that described RoT threshold value is set comprises:

Be minimum value in described RoT threshold value and described another RoT threshold value with described RoT threshold value setting.

9. method according to claim 1, wherein, the step of the one or more parameters of described reception comprises:

Receive the position of described Femto cell access point in macrocell, and the step of described definite RoT threshold value is at least in part based on the distance that calculates between one or more other access points in described Femto cell access point and described macrocell.

10. device that hot noise increase (RoT) threshold value that is used for the Femto cell access point arranges comprises:

At least one processor, it is configured to:

The place arranges described RoT threshold value at described Femto cell access point; And

Memory, it is coupled to described at least one processor.

11. device according to claim 10, wherein, described one or more parameter comprises at least one equipment to the first path loss measurement value of described Femto cell access point, and described at least one equipment is to the second path loss measured value of the second access point.

12. device according to claim 11, wherein, described one or more parameter comprises from another equipment at least to the first extra path loss measurement value of described Femto cell access point, and the second extra path loss measured value from described at least another equipment to described the second access point, and wherein, described at least one processor is further determined described RoT threshold value based on the function of the difference between described extra the first path loss measurement value and described the second path loss measured value additionally at least in part.

13. device according to claim 11, wherein, described at least one processor is further configured as obtaining described at least one equipment to the one or more extra path loss measured value of one or more extra access points, and wherein, described one or more parameter comprises described one or more extra path loss measured value.

14. device according to claim 11, wherein, described at least one equipment is the network monitoring module that places altogether described Femto cell access point place.

15. the device that hot noise increase (RoT) threshold value that is used for the Femto cell access point arranges comprises:

Be used for receiving the module of the one or more parameters corresponding with one or more access points;

Be used for determining based on described one or more parameters at least in part the module of the RoT threshold value of described Femto cell access point; And

Be used for arranging at described Femto cell access point place the module of described RoT threshold value.

16. device according to claim 15, wherein, described one or more parameter comprises at least one equipment to the first path loss measurement value of described Femto cell access point, and described at least one equipment is to the second path loss measured value of the second access point.

17. device according to claim 16, wherein, described one or more parameter comprises from another equipment at least to the first extra path loss measurement value of described Femto cell access point, and the second extra path loss measured value from described at least another equipment to described the second access point, and wherein, described module for determining is further determined described RoT threshold value based on the function of the difference between described extra the first path loss measurement value and described the second path loss measured value additionally at least in part.

18. device according to claim 16, wherein, described module for receiving further obtains described at least one equipment to the one or more extra path loss measured value of one or more extra Femto cell access points, wherein, described one or more parameter also comprises described one or more extra path loss measured value.

19. device according to claim 16 also comprises:

Be used for the module to processing from one or more signals of described the first access point or described the second access point, wherein, described at least one equipment comprise described for the treatment of module.

20. the computer program that hot noise increase (RoT) threshold value that is used for the Femto cell access point arranges comprises:

Computer-readable medium, it comprises:

Be used for making at least one computer to receive the code of the one or more parameters corresponding with one or more access points;

Be used for making described at least one computer determine at least in part the code of the RoT threshold value of described Femto cell access point based on described one or more parameters; And

Be used for making described at least one computer that the code of described RoT threshold value is set at described Femto cell access point place.

21. computer program according to claim 20, wherein, described one or more parameter comprises at least one equipment to the first path loss measurement value of described Femto cell access point, and described at least one equipment is to the second path loss measured value of the second access point.

22. computer program according to claim 21, wherein, described one or more parameter comprises from another equipment at least to the first extra path loss measurement value of described Femto cell access point, and the second extra path loss measured value from described at least another equipment to described the second access point, and wherein, described code be used to described at least one computer is determined is further determined described RoT threshold value based on the function of the difference between described extra the first path loss measurement value and described the second path loss measured value additionally at least in part.

23. computer program according to claim 21, wherein, described computer-readable medium also comprises:

Be used for making described at least one computer to obtain described at least one equipment to the code of the one or more extra path loss measured value of one or more extra access points, and wherein, described one or more parameter comprises described one or more extra path loss measured value.

24. computer program according to claim 21, wherein, described at least one equipment is the network monitoring module that places altogether described Femto cell access point place.

25. the device that hot noise increase (RoT) threshold value that is used for the Femto cell access point arranges comprises:

The parameter receiving-member, it is used for receiving the one or more parameters corresponding with one or more access points;

RoT threshold value determining means, it is used for determining based on described one or more parameters at least in part the RoT threshold value of described Femto cell access point; And

RoT threshold value setting parts, it is used at described Femto cell access point place described RoT threshold value being set.

26. device according to claim 25, wherein, described one or more parameter comprises that at least one equipment is to the first path loss measurement value of described Femto cell access point, and described at least one equipment is to the second path loss measured value of the second access point, wherein, described one or more parameter comprises described the first path loss measurement value and described the second path loss measured value.

27. device according to claim 26, wherein, described one or more parameter comprises from another equipment at least to the first extra path loss measurement value of described Femto cell access point, and the second extra path loss measured value from described at least another equipment to described the second access point, and wherein, described RoT threshold value determining means is further determined described RoT threshold value based on the function of the difference between described extra the first path loss measurement value and described the second path loss measured value additionally at least in part.

28. device according to claim 26, wherein, described parameter receiving-member further obtains described at least one equipment to the one or more extra path loss measured value of one or more extra Femto cell access points, wherein, described one or more parameter also comprises described one or more extra path loss measured value.

29. device according to claim 26 also comprises:

Network monitoring module (NLM) parts, it is used for processing from one or more signals of described the first access point or described the second access point, and wherein, described at least one equipment comprises described NLM parts.

30. device according to claim 26 also comprises:

Measure the request parts, it is used for the part as cycle of training, and described at least one equipment is configured so that understatement is accused described the first path loss measurement value and described the second path loss measured value.

31. device according to claim 25, wherein, described parameter receiving-member is determined and the maximum transmission power of the equipment that described Femto cell access point communicates, and wherein, described RoT threshold value determining means is determined another RoT threshold value based on described maximum transmission power at least in part.

32. device according to claim 31, wherein, described RoT threshold value determining means is defined as minimum value in described RoT threshold value and described another RoT threshold value with described RoT threshold value.

33. device according to claim 25, wherein, described one or more parameter comprises the position of described Femto cell access point in macrocell, and described RoT threshold value determining means is determined described RoT threshold value based on the distance that calculates between one or more other access points in described Femto cell access point and described macrocell at least in part.

34. one kind is used for the method coming the parameter of access point is adjusted based on to determining of disturbing, comprises:

Detect the strongest transmitting power of one or more access points;

Determine whether the strongest described transmitting power surpasses the transmitting power of using at Femto cell access point place; And

Whether surpass the noise floor that described transmitting power is adjusted the estimation of described Femto cell access point based on the strongest described transmitting power at least in part.

35. method according to claim 34 also comprises:

Estimate the level of interference outside the residential quarter, wherein, the step of the noise floor that described adjustment is estimated is further at least in part based on the level of disturbing outside the described residential quarter.

36. method according to claim 35 wherein, is measured noise during the step of the level of disturbing outside the described estimation residential quarter is included in a period of time.

37. method according to claim 34 also comprises:

Whether surpass the hot noise increase threshold that described transmitting power is adjusted described Femto cell access point based on the strongest described transmitting power at least in part.

38. method according to claim 34, wherein, the step of the noise floor that described adjustment is estimated comprises:

For in soft switching process, being come the noise floor of the described estimation of described Femto cell access point is adjusted by the given equipment of different access point services.

39. described method according to claim 38 also comprises:

The identifier of the equipment that request is served by described access point in soft switching process; And

Receive at least in part the identifier of described given equipment from described different access point based on described request.

40. method according to claim 34 also comprises:

During communicating with described at least one equipment, strengthen the noise floor of described estimation.

41. one kind is used for the device that comes the parameter of access point is adjusted based on to determining of disturbing, comprises:

At least one processor, it is configured to:

Detect the strongest transmitting power of one or more access points;

Whether surpass the noise floor that described transmitting power is adjusted described Femto cell access point based on the strongest described transmitting power at least in part; And

Memory, it is coupled to described at least one processor.

42. described device according to claim 41, wherein, described at least one processor is further configured the level of disturbing outside the residential quarter into estimating, wherein, described at least one processor further comes described noise floor is adjusted based on the level of disturbing outside the described residential quarter at least in part.

43. described device according to claim 41, wherein, described at least one processor is further configured as whether surpassing described transmitting power based on the strongest described transmitting power at least in part to come the hot noise increase threshold of described Femto cell access point is adjusted.

44. described device according to claim 41, wherein, described at least one processor is for being come the described noise floor of described Femto cell access point is adjusted by the given equipment of different access point services in soft switching process.

45. described device according to claim 44, wherein, described at least one processor is further configured and is request identifier by the equipment of described access point service in soft switching process, and the identifier that receives at least in part described given equipment based on described request from described different access point.

46. one kind is used for the device that comes the parameter of access point is adjusted based on to determining of disturbing, comprises:

Module for detection of the strongest transmitting power of one or more access points; And

Adjust the module of the noise floor of described Femto cell access point for the transmitting power that whether surpasses the Femto cell access point based on definite the strongest described transmitting power at least in part.

47. described device according to claim 46, wherein, described for detection of module further estimate outside the residential quarter level disturbed, and described module for adjusting is further come described noise floor is adjusted based on the level of interference described residential quarter outside at least in part.

48. described device according to claim 46 also comprises:

Be used at least in part whether surpassing described transmitting power based on the strongest described transmitting power and come module that the hot noise increase threshold of described Femto cell access point is adjusted.

49. described device according to claim 46, wherein, described module for adjusting is for coming the described noise floor of described Femto cell access point is adjusted at the given equipment of soft switching process by different access point services.

50. described device according to claim 49 also comprises:

Be used for request at soft switching process by the identifier of the equipment of described access point service and the module that receives at least in part the identifier of described given equipment based on described request from described different access point.

51. one kind is used for the computer program that comes the parameter of access point is adjusted based on to determining of disturbing, comprises:

Computer-readable medium, it comprises:

Code for the strongest transmitting power that makes the one or more access points of at least one COMPUTER DETECTION;

Be used for making described at least one computer to determine whether the strongest described transmitting power surpasses the code of the transmitting power of using at Femto cell access point place; And

Be used for making described at least one computer whether to surpass described transmitting power based on the strongest described transmitting power at least in part and come code that the noise floor of described Femto cell access point is adjusted.

52. 1 described computer program according to claim 5, wherein, described computer-readable medium also comprises:

Be used for making described at least one computer to estimate the code of the level of interference outside the residential quarter, wherein, described code be used to described at least one computer is adjusted further comes described noise floor is adjusted based on the level of disturbing outside the described residential quarter at least in part.

53. 1 described computer program according to claim 5, wherein, described computer-readable medium also comprises:

Be used for making described at least one computer whether to surpass described transmitting power based on the strongest described transmitting power at least in part and come code that the hot noise increase threshold of described Femto cell access point is adjusted.

54. 1 described computer program according to claim 5, wherein, described code for described at least one computer is adjusted is for coming the described noise floor of described Femto cell access point is adjusted at the given equipment of soft switching process by different access point services.

55. 4 described computer programs according to claim 5, wherein, described computer-readable medium also comprises:

Be used for making described at least one computer request at soft switching process by the identifier of the equipment of described access point service and receive at least in part the code of the identifier of described given equipment from described different access point based on described request.

56. one kind is used for the device that comes the parameter of access point is adjusted based on to determining of disturbing, comprises:

Disturb determining means, it is for detection of the strongest transmitting power of one or more access points; And

The noise floor adjustment component, it adjusts the noise floor of described Femto cell access point for the transmitting power that whether surpasses the Femto cell access point based on definite the strongest described transmitting power at least in part.

57. 6 described devices according to claim 5, wherein, described interference determining means is further estimated the level of interference outside the residential quarter, and described noise floor adjustment component is further come described noise floor is adjusted based on the level of disturbing outside the described residential quarter at least in part.

58. 7 described devices according to claim 5, wherein, described interference determining means at least in part by during a period of time to noise measurement estimate the level disturbed outside the described residential quarter.

59. 6 described devices according to claim 5 also comprise:

Hot noise increase (RoT) threshold value adjustment component, it is used for whether surpassing described transmitting power based on the strongest described transmitting power at least in part and comes the RoT threshold value of described Femto cell access point is adjusted.

60. 6 described devices according to claim 5, wherein, described noise floor adjustment component is for being come the described noise floor of described Femto cell access point is adjusted by the given equipment of different access point services in soft switching process.

61. 0 described device according to claim 6, soft handover (SHO) device request parts are used for request at the identifier of SHO process by the equipment of described access point service, and receive at least in part the identifier of described given equipment from described different access point based on described request.

62. 6 described devices according to claim 5, wherein, described noise floor adjustment component is to the described noise floor of at least one device report.